Figure 6 Distribution of sizes and shapes in 19 Quercus species. (Left to right) Quercus turbinella, Q. engelmannii, Q. john-tuckeri, Q. cornelius-mulleri, Q. douglassii, Q. dumosa, Q. pacifica, Q. durata, Q. garryana, Q. lobate, Q. saddleriana, Q. tomentella, Q. vaccinifolia, Q. chrysolepis, Q. palmeri, Q. wislizeni, Q. parvula, Q. agrifolia, Q. kelloggii.